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Showing posts from 2016

The Pale Blue Dot

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On February 14, 1990, Voyager 1 turned around from a distance close to 4 billion miles away (which is 40 times as far as the Sun from Earth), and took a last look at us. You see Earth below, next to the red arrow, as a mere pixel suspended in the sunbeam scatter of the photograph. From NASA: " This narrow-angle color image of the Earth, dubbed 'Pale Blue Dot', is a part of the first ever 'portrait' of the solar system taken by Voyager 1. The spacecraft acquired a total of 60 frames for a mosaic of the solar system from a distance of more than 4 billion miles from Earth and about 32 degrees above the ecliptic. From Voyager's great distance Earth is a mere point of light, less than the size of a picture element even in the narrow-angle camera. Earth was a crescent only 0.12 pixel in size. Coincidentally, Earth lies right in the center of one of the scattered light rays resulting from taking the image so close to the sun. This blown-up image of the Earth was ta

Certified Random: How To Co-Author If You Must

by Debraj Ray  ®  Arthur Robson ( For the full Monty, click here ) Many years ago, when Debraj worked at Boston University and his good friend Arthur visited there, we spent one of our many enjoyable lunches together railing against the indignities of alphabetical order, which is the dominant name-ordering convention for publications in economics. A quick perusal of our last names will explain why we railed. To add insult to injury, Debraj had just been enthusiastically recommended a “ wonderful paper ” by Banerjee et al, on which he was a co-author. Alphabetical order is, in many ways, a good arrangement. Our colleagues from other disciplines express wonderment that such a self-centered subspecies — the academic economist — actually uses this civilized convention. Around 85% of two-author papers are written in alphabetical order. Compare this to the cutthroat nature of much of the sciences, in which there is often a tussle for first authorship, while other not-so-subtle sign

The Universal Basic Share

Universal basic income, or UBI for those acronymically minded, is in the news these days, along with other brilliant post-modern inventions such as Brexit or Trump. Unlike these other luminaries, though, UBI is a genuinely cool idea: give everyone a basic amount to spend, and let them do what they will with it. They could write poetry, compose sonatas, or study number theory. They could work for more income if they wanted. Or they could relax and do absolutely nothing. UBI is the offspring of a beautiful dream: the liberation of the human being from the drudgery of everyday labor. But it is also the product of a scary thought: the trend of ever-advancing automation, now accelerated many-fold by new deep learning algorithms . You see the connection, of course. If a bunch of creepy robots are going to pass the Turing test at the call center , or drive up shinily when you hail an Über , or stack boxes even as they are energetically prevented from doing so , or even dance while doing